The Z Project was originally created to alleviate the younger generation's burden of caring for the elderly by developing a machine capable of providing care without human intervention. At first, the plan was well-received and gained support from many young people. However, Mr. Takazawa, an elderly individual, became the first test subject for the Z-001 machine, leading Haruko to question the hospital's methods and the morality of relying on a machine for intimate care. Despite facing numerous obstacles, Haruko continued to fight against the hospital. Ultimately, she discovered a peculiar characteristic of the machine - it was powered by a biochip and had developed its own consciousness!